I think I am close to finishing my build of the LR2. I’ve built my table, and assembled the hardware and plugged in the electronics.
I have had difficulty finding information about the LCD. I can turn the knob and that seems to work, but I cannot figure out how to do anything else (besides hitting the reset button). I saw a video of someone using the knob as a button, but when I press the knob nothing happens. If it helps I have uploaded a video showing this: https://youtu.be/4ulV1lPaXwU
Is the knob suppose to be a button too? If so, what could be wrong and how do I fix this? If not, how do I make selections on the LCD?
Yes, the knob is a button. Either:
- the knob is interfering. You can pull it straight of and try just the metal part of the knob.
- something is wrong with your lcd. Everything is independent, so it’s possible a bad solder on the lcd would leave the button broken and everything else fine.
- a wire between the lcd and the controller is broken. This seems like the least likely. But you could inspect the wires.
Thanks! I’ll give those a try when I get home from work tonight.
Make sure there’s clearance under the knob.
I had the same problem. I ended up throwing the knob away and I just turn the metal end of the potentiometer.
It was the knob! Knob removed, problem solved. One step further. Thanks for your comments!